wxMEdit is a cross-platform text and hex editor, derived from MadEdit. It adds automatic updates, bookmarks, selecting lines with a tripple click, a FreeBASIC syntax file, more supported encodings (L1, CP850, CP437 etc, KOI8, UTF-x), better Max OS X and Windows support, nicer dialogs based on Code::Blocks wxSmith, more localizations, is a bit more stable and comes with an improved build system.
Wammu is a graphical mobile phone management tool. It's based upon the Gammu library for interfacing to different hardware and protocols (OBEX, etc). It provides phonebook, todo list, files, calendar, and SMS archiving, editing, copying or sending.